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Cable Modem Frequent T3 dropouts

miele1594
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Cable Modem Frequent T3 dropouts

Hey all,

 

Recently multiple times a day I was losing internet connection. I tought it was my router, but after messing with that nothing changed. I checked my cable modem logs and notice frequent t3 dropouts. When my internet is out I notice the upstream light is blinking. Here is my connection attached. Any tips on what the issue is? 

Model: CM1200|Nighthawk Multi-Gig Speed Cable Modem
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plemans
Guru

Re: Cable Modem Frequent T3 dropouts

Your downstream power levels are high and your upstream levels are to low. 

If you have any splitters, amplifiers, or attenautors in the coax line, remove them. 

Also check the coax cable for kinks, damage, poor connections, corrosion, bad/poor wiring, etc.  Preferrably move the modem to where the coax enters the home. 

If you still have the issue, you need to contact the isp to check the line. 

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